Video recorder with distortion corrector circuit

Details Video recorder with distortion corrector circuit Video recorder with distortion corrector circuit

1993-10-12

1995-07-04

Chin, Tommy P.

Facsimile and static presentation processing

Facsimile

Recording apparatus

358340, H04N 987

Patent

active

054305519

ABSTRACT:
A brightness signal distortion correction circuit (8, 11, 21) is provided for a video recorder, having distortion correction circuit (11), responsive to frequency-modulated brightness signals, and further responsive to feedback disturbance recognition control signals (U, J), for providing distortion corrected brightness signals; and also having disturbance recognition circuit (21), responsive to the distortion corrected brightness signals, for providing the feedback disturbance recognition control signals (U, J). In one embodiment, the distortion correction circuit (11) includes an adjustable transmission circuit (8) being arranged between the distortion correction circuit (11) and the disturbance recognition circuit (21), and having a voltage divider circuit (50, 51) including a resistor (51) and first and second diode circuit (50), responsive to the disturbance recognition control signals (J). In another embodiment the distortion correction circuit (11) includes adjustable threshold switching circuit (16), which is responsive to the feedback disturbance recognition control signal (I).

REFERENCES:
patent: 3375462 (1968-03-01), McTaggart
patent: 3824620 (1974-07-01), Langer
patent: 3925811 (1975-12-01), Kenney
patent: 4017895 (1977-04-01), Oprandi et al.
patent: 4106063 (1978-08-01), Lackner et al.
patent: 4152733 (1979-05-01), Melwisch
patent: 4827511 (1989-05-01), Masuko
patent: 4833371 (1989-05-01), Boon et al.
patent: 4835622 (1989-05-01), Martens
patent: 4984093 (1991-01-01), Schmidtmann et al.
patent: 5050002 (1991-09-01), Suzuki et al.
Patent Abstracts of Japan, vol. 10, No. 65 (E-388) (2122), Mar. 14, 1986 & JP-A-60 216 681 (Sony) Oct. 30, 1985.
DE-Z: Reime, Gerd: Bildverbesserung im Detail. In: Funkschau, H.18, 1988, S. 60-63.

Affiliated with

Also associated with

Rating

Video recorder with distortion corrector circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Video recorder with distortion corrector circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Video recorder with distortion corrector circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-764500